package com.tony.study.thread;

/**
 * Created with IntelliJ IDEA.
 *
 * @Title: LambdaDemo01
 * @Auther: 皮蛋布丁
 * @Date: 2021/10/31/11:16
 * @Description: 推导Lambda表达式(无参)
 */
public class LambdaDemo01 {

    //3、静态内部类
    static class Like2 implements ILike {
        @Override
        public void lambda() {
            System.out.println("I like lambda2");
        }
    }

    public static void main(String[] args) {
        ILike like = new Like();
        like.lambda();

        like = new Like2();
        like.lambda();

        //4、局部内部类
        class Like3 implements ILike {
            @Override
            public void lambda() {
                System.out.println("I like lambda3");
            }
        }
        like = new Like3();
        like.lambda();

        //5、匿名内部类，没有类的名称，必须借助接口或者父类
        like = new ILike() {
            @Override
            public void lambda() {
                System.out.println("I like lambda4");
            }
        };
        like.lambda();

        //6、用lambda简化
        like = () -> {
            System.out.println("I like lambda5");
        };
        like.lambda();
    }
}

//1、定义一个函数式接口
interface  ILike {
    void lambda();
}

//2、实现类
class Like implements ILike {

    @Override
    public void lambda() {
        System.out.println("I like lambda");
    }
}